Fuse-receptacle.



B. P. ROWE dz S. M. KINTNBR.

FUSE BEOBPTAGLE. unieuro! FILED een'. 2o, leo'e.

Patented Sept. 14. 1909.

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ATTORNEY Patented SBpt. 14. 1909; 2 sHnnTvs-snnsr 2.

INVENTORS TTORNEY B. P. ROWE n S. M. KINTNBR.

l FUSE BEGEPVTAOLE. APPLICATION FILED SEPT. 20, 1906.

[Imran srnrns PATENT ortica.

BERTRAND P. ROWE, F WILKINSBURG, AND SAMUEL M. ,KINTNER, 0F PITTSBURG,PENNSYLVANIA, ASSIGNORS TO WESTINGI-IOUSE ELECTRIC a MANUFACTURINGCOMPANY, A CORPORATION OF PENNSYLVANIA.

FUSE-RECEPTACLE.

-Speccation of Letters Patent.

Patented Sept. 14, 1909.

Application iled September 20, 1906. Serial No. 335,509.

l'o all whom fit may concern:

Be it known that we, BERTRAND P. Rown and SAuUEL M. Krn'risnm'citizensof the United States, and residents, respectively, of Wilkinsburg and ofPittsburg, in the county of Allegheny and State of Pennsylvania, haveinvented a new and useful Improvement inFuse-Beceptacles, of which thefollowing is a specification.

Our invention relates to inclosing and supporting means forelectricalfcircuit fuses, and it has for its object to provide astructure of the character indicated which shall be specially adaptedfor the protection of apparatus utilized in connection with highpotentiall circuits, such, for example, as

transformers, ground detectors, etc.

In the accompanying drawings, Figure 1 is a longitudinal sectional viewof apparatus embodying our invention, a portion of the linsulator uponwhich the,l apparatus is mounted being also shown partially in`elevation and partially in section. Fig. 2 is a longitudinal sectionalview of a modified form of our apparatus and a portion of a transformercasing, in elevation, upon which the apparatus is mounted.

Referring rst to F ig. 1, the fusible wire or strip 1, whichis utilizedfor interrupting the circuit in case of an eXcessive flow of currenttherethrough, is preferably located within a tube 2 of glass or othereasily fractured material, its ends being connected to terminals 3 and 4in the usualfor any suitable manner. The terminal 4 has a screwthreadedconnection with a rod 5 which projects through the lower end 6EL of ashell or casing 6 formed of porcelain or other suitable insulatingmaterial, the outer sur- ,l face of which may be corrugated, as indi--cated. The rod 5 is connected, by means of 4nuts 7, to a terminal block8 that is provided with suitable binding screws- 9 and is securelymounted upon an insulator 10 of anyy suitable construction, hereindicated as of the multi-'petticoat type such as is used in hightension work. v

The opening through the lower end of' the casing 6 to receive the rod 5is packed. to preventthe passage of Huid therethrough, by means ofsuitable gaskets 11. The terminal 3 is connected to a disk 12 andbracket 13 near the upper end of 'the casing. 6 by means of a spring 14,which is normally held under tension by the receptacle 2, so that, whenthe receptacle is shattered by the blowing of-the fuse 1, the terminal 3will be quickly moved to a materially greater dis: tance from theterminal 4 than it occupies when the fuse and its receptacle are intact.The casing 6 is preferably partially filled with oil or other insulatingliquids, as indicated in the drawings, and the bracket-'13 is l fastenedto the lower end of a tube 15 which projects through an opening in thecap or cover 16 of the casing 6, this tube serving as a vent opening andthe expulsion of oil therethrough being prevented by means of theprotecting disk 12. y

Referring, now, to Fig. 2 of the drawings, the parts 1',"2,3 tt, 5, 1l,l2, 13, 14, 15 and 16 are substantially the same in structure and modeof operation as the correspondingv parts shown in Fig. 1 andhereinbefore described. ln this modification, however, thc casing 17 hasa portion 18 that projects below the base portion 17a and is tted upon,and preferably cemented to, a transformer terminal tube 19 of insulatingmaterial. The terminal 20 of the transformer 21 is provided with a tube22 that projects through the insulating tube 19 and has akscrew-threaded connection with the lower end of the rod 5. By reason ofthis arrangement of parts, the insulating termina-l tube 19 may be madeVshorter than would otherwise be the case, since the voltage strainsthrough the air are transferred largely to the porcelain casing 17 17aand 18.

The structural details of the apparatus may, of course, be varied fromwhat we have specifically illustrated and described, provided thecontemplated mode of operation,l and result are retained.

We claim as our invention: p

1. The combination with an insulating receptacle having a cover providedwith a vent opening and a shield for said opening, and a body ofinsulating fluid contained in said receptacle, :of separable circuitterminals within the receptacle, and an inclosed fuse device connectedbetween the terminals and adaptedy to be ruptured upon the passage ofmore than a predetermined amount of current.

2. The combination with a hollow insuthe cover of the insulator, aninclosed fuse device having terminal pieces connected to thel respectivecircuit terminals, a fusible conductor, an inclosing means therefor thatis ruptured by fusing the conductor, andmeans for separating theterminals of the fusible conductor when its inclosing means is ruptured.j

4. The combination with a hollow insulatorhaving a cover and containinga body of insulating fi'uid, of circuit terminals that projectrespectively through the bottom and the cover of the insulator, aninclosed fuse device having terminal pieces connected to the respectivecircuit terminals, a fusible conductor, an inclosing means therefor thatis ruptured by fusing the conductor, means for separating the terminalsof the fuse when its inclosing means is ruptured, and means secured tothe outer'end of the lower circuit terminal for supporting theinsulator.

5. The combination with a hollow insulator having a cover and containinga body of insulating fluid, of circuit terminals that projectrespectively through the bottom and the cover of the insulator, aninclosed fuse device having terminal pieces connected' t0 the respectivecircuit terminals, Va fusible conductor, an inclosing means thereforthat is ruptured by fusing the conductor, means for separating theterminals of the fuse when the inclosing means is ruptured, aninsulating support for the insulator, land a conductor inclosed in saidsupport and conesavev nected to the lower end of the lower circuitterminal.

'6, The combination with a hollow insulator having a cover andcontaining a body of insulating fluid, of circuit terminals that projectrespectively 'through the bottom and 55 therefor that supports lthehollow insulator.

7. The combination with a hollow insulator having a cover provided witha vent opening and containing a body of insulating fluid, of circuitterminals that project respectively through the bottom and the cover ofthe insulator, an inclosed fuse device having terminal pieces connectedto the respective circuit terminals, a fusible conductor, an

inclosing means therefor that is ruptured by fusing the conductor, andmeans for separating the terminals of the fuse when vits in closingmeans is ruptured.

8. NThe combination with a hollow insulator having a cover andcontaining a body of insulating fluid, of circuit terminals that projectrespectively through the bottom and the coverof the insulator, the upperterminal being tubular to provide a vent opening, an inclosed fusedevice comprising terminal pieces connected to the respective circuitterminals, a fusible conductor, an inclosing means therefor that isruptured by fusing the conductor, and means for separating the terminalsof the fuse when its inclosing means is ruptured.

In testimony whereof, we have hereunto subscribed our names this 13thvday of September, 1906.

i BERTRAND P. ROWE.

` SAMUEL M. KINTNER. itnesses O'rro S. SCHAIRER, BIRNEY HINES.

